Table 1 Classification and Functional Positioning of Hub Airports.

From: Route evaluation strategy of the Beijing-Tianjin multi-airport system based on the two-dimensional evaluation framework

Airport Level

Airport Level

Airport Level

Level 1 Hub

International Hub

Beijing Capital, Beijing Daxing, Shanghai Pudong, Guangzhou Baiyun

Level 2 Hub

Composite Hub

Shanghai Hongqiao, Hangzhou Xiaoshan, Chengdu Shuangliu, Chongqing Jiangbei, Xi’an Xianyang, Shenzhen Bao’an, Kunming Changshui, Urumqi Diwopu

Level 3 Hub

Regional Hub

Dalian Zhoushuizi, Changchun Longjia, Changsha Huanghua, Fuzhou Changle, Guiyang Longdongbao, Guilin Liangjiang, Harbin Taiping, Haikou Meilan, Hefei Xinqiao, Hohhot Baita, Lhasa Gonggar, Lanzhou Zhongchuan, Nanjing Lukou, Nanning Wuxu, Nanchang Changbei, Ningbo Lishe, Sanya Phoenix, Shijiazhuang Zhengding, Shenyang Taoxian, Taiyuan Wusu, Tianjin Binhai, Xiamen Gaoqi, Wenzhou Longwan, Wuhan Tianhe, Xining Caojiabao, Yinchuan Hedong, Zhengzhou Xinzheng

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